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{"bugzilla": {"description": "Oj: Stack Buffer Overflow in Oj.dump via Large Indent", "id": "2495807", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2495807"}, "csaw": false, "details": ["Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.2, Oj.dump is vulnerable to a stack-based buffer overflow when a large :indent value is provided by the developer. fill_indent in dump.h calls memset(indent_str, ' ', (size_t)opts->indent) without validating the size. When opts->indent is set to INT_MAX (2,147,483,647), the (size_t) cast preserves the large value and memset writes 2 GB into the stack-allocated out buffer (4,184 bytes), corrupting the stack and crashing the process. This issue has been fixed in version 3.17.2."], "name": "CVE-2026-54502", "public_date": "2026-06-30T23:10:27Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-54502\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-54502\nhttps://github.com/ohler55/oj/security/advisories/GHSA-3v45-f3vh-wg7m"], "statement": "Red Hat's only product shipping the Oj Ruby gem (Compliance Backend) already includes version 3.17.3, which contains the fix for this vulnerability. No Red Hat products are affected.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.17.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "oj", "source": "cna", "vendor": "ohler55"}, "product": "oj", "vendor": "ohler"}], "created": "2026-07-01T01:15:16.574408+00:00", "updated": "2026-07-01T13:30:15.503139+00:00", "vendors": ["ohler", "ohler$PRODUCT$oj"]}